EP0806857A2 - Combiné téléphonique pour un système radiotéléphonique - Google Patents

Combiné téléphonique pour un système radiotéléphonique Download PDF

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Publication number
EP0806857A2
EP0806857A2 EP97106737A EP97106737A EP0806857A2 EP 0806857 A2 EP0806857 A2 EP 0806857A2 EP 97106737 A EP97106737 A EP 97106737A EP 97106737 A EP97106737 A EP 97106737A EP 0806857 A2 EP0806857 A2 EP 0806857A2
Authority
EP
European Patent Office
Prior art keywords
locking
handset according
housing shell
handset
housing shells
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97106737A
Other languages
German (de)
English (en)
Other versions
EP0806857A3 (fr
Inventor
Dirk Michalzik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Oyj
Original Assignee
Nokia Mobile Phones Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Publication of EP0806857A2 publication Critical patent/EP0806857A2/fr
Publication of EP0806857A3 publication Critical patent/EP0806857A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0249—Details of the mechanical connection between the housing parts or relating to the method of assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0262—Details of the structure or mounting of specific components for a battery compartment

Definitions

  • the invention relates to a handset for a radio telephone system according to the preamble of claim 1.
  • the term handset in such a handset it can be, for. B. can be a mobile phone or a cordless phone.
  • the term handset also includes a handset of a two-part radio telephone consisting of a handset and control device, e.g. B. a car phone.
  • a handset of the type mentioned usually consists of a front housing shell and a rear housing shell, which are detachably connected to one another, generally by means of screws. These can be easily unscrewed so that the handset can also be opened by laypersons, which can lead to damage and possibly malfunctions.
  • the invention has for its object to ensure in a handset of the type mentioned that it can no longer be easily opened by laymen, but can be dismantled quickly and easily by a specialist.
  • a handset provided for a radio telephone system is characterized in that it has a locking device in its interior which locks the housing shells together in a locking position and releases the locking in an unlocking position, and that it also contains a blocking device in its interior. which prevents an independent transition of the locking device from the locking position into the unlocking position.
  • the locking device and the blocking device are therefore inaccessible to a layperson, since they are both located inside the handset. It can therefore practically only be opened by specialist personnel. Only this knows possible ways of actuating the blocking device in such a way that it allows the locking device to transition from the locking position into the unlocking position, so that the housing shells can be separated from one another. The operational safety and the service life of the handset can be significantly improved.
  • the locking device and the blocking device can be arranged spatially separated from one another. However, it is also possible to combine at least parts of the locking device and the blocking device into a common element. This element could then have both a locking function and a blocking function.
  • a locking device is to be understood as a device which, when the two housing shells are connected, permits a relative displacement of the locking elements belonging to it in one direction, i.e. between the locking position and the unlocking position, and otherwise prevents a relative displacement of the locking elements in a direction perpendicular thereto, if the locking position achieved.
  • the blocking device then serves to block the relative displacement of the locking elements in the remaining single direction.
  • the blocking device can be actuated through an opening which is located in an outer wall of one of the housing shells, the opening being closed by a removable outer wall element of this housing shell.
  • the outer wall element can also lie in the opening.
  • a simple way of actuating the blocking device is thus made available to the person skilled in the art, while it is not so easy for the layperson to find this way, especially if the outer wall element is covered, for example, by a nameplate or only poorly by a continuous wall structure of the housing shell is recognizable. On the other hand, even if the outer wall element is removed, care can be taken to ensure that means for actuating the blocking device are difficult to locate, so that even in this unfavorable case it is very unlikely that a layperson will discover these means.
  • the locking device includes lugs carried by one of the housing shells and hooks carried by the other housing shells, which are displaceable parallel to a connecting plane of the housing shells.
  • the direction of displacement can be chosen as desired, but will preferably be in the longitudinal direction of the handset. If the locking position is reached, the lugs are inserted into the hooks. The blocking device then blocks any further relative displacement between lugs and hooks parallel to the connecting plane of the housing shells, so that it is then no longer possible to separate the housing shells from one another.
  • the housing shells when they lie one on top of the other, can be moved parallel to one another, with both the lugs and the hooks being firmly attached to them.
  • the lugs and hooks can be connected in one piece to the respective housing shells. If the housing shells are made of plastic, this also applies to the lugs and hooks.
  • the locking device can thus be designed in a space-saving manner and thus inexpensive to manufacture.
  • the blocking device contains at least one latching element, which is one of the housing shells is worn and engages behind an edge of the other housing shell when the locking device is in the locking position.
  • a locking element can be arranged at a suitable location.
  • the locking element can, for. B. be designed as a locking arm which is pivotally mounted on the housing shell. In the case of two locking arms, these can be connected to one another via a common bracket. Each of the locking arms has a pawl on its free side which, when the locking device is in the locking position, engages behind a corresponding edge of the other housing shell.
  • Locking arms and brackets can also be made of plastic, so that no metal parts are required for the locking device and the blocking device. This leads to the handset being more recyclable.
  • the latching element can be coupled to a tension element which lies in the region of the opening.
  • the tension element could also be coupled to the bracket connecting the locking elements.
  • the latching elements that is to say the blocking device, can thus be actuated via this tension element, the free end of which can also be guided in a guide for better positioning of the tension element.
  • the tension element itself can be z. B. provided with a slot in which a pointed object, for. B. a screwdriver can be inserted to adjust the tension element in its longitudinal direction.
  • the tension element of the covered in the opening outer wall element can be positioned so that it depresses the pulling element in its desired position and thus the locking element behind the edge when the locking device is in the locking position. There is therefore no need for a separate mechanism with which e.g. B. the locking element is biased towards the edge. This simplifies the construction of the blocking device.
  • the outer wall element can be displaceable in its plane between two positions and cover the tension element in each position, so that it is not easily accessible even in the different displacement positions of the outer wall element.
  • the traction element is only accessible when the outer wall element is completely removed, although further measures are required for this. The traction element is thus largely protected against unauthorized access.
  • a so-called SIM card of the handset can be covered, which is also in the opening or below this.
  • the locking device includes at least two locking rods, each carrying lugs or hooks, which are displaceable parallel to a connecting plane of the housing shells and mounted on one of the housing shells, and hooks or lugs on the other housing shell.
  • one end of the respective locking rods is held in a holder on one housing shell so as to be displaceable by clamping.
  • the locking bars are preferably located on both long sides of the handset and extend in the longitudinal direction thereof. They themselves can be moved in their longitudinal direction. To move the locking rods, they can each be provided in the region of their other end with a projection projecting into the battery compartment of the handset. The respective approach can be below im Batteries located in the battery room come to rest to protect it against improper operation.
  • the locking bars can also be connected to each other, e.g. B. on the approaches mentioned, so that only a shift operation is required.
  • the mobile phone designed as a handset according to FIGS. 1a and 1b belongs to a radio telephone system in which mobile phones can communicate with one another via a fixed base station.
  • a cell phone can also be referred to as a cell phone.
  • the handset according to FIGS. 1a and 1b consists of a rear housing shell 1 and a front housing shell 2. These are quasi half shells which are connected to one another to build up the handset. They can also be separated from each other again, as will be described later.
  • the front housing shell 2 carries a loudspeaker 3, a display 6 arranged behind a window 4 in a frame 5, several buttons 7 and a microphone 8. All units 3 to 8 are located on a main circuit board 9. This is suitably between the front Housing shell 2 and the rear housing shell 1 attached. All electrical components on the printed circuit board 9 are shielded by a shield plate 10.
  • the receiving and transmitting devices on the printed circuit board 9, which are also not shown, are connected to an antenna 11 via a line, not shown.
  • the rear housing shell 1 is used at the lower end of the handset to form a battery compartment 12, in which a battery pack 14 can be accommodated for operating the handset.
  • a battery pack 14 can be accommodated for operating the handset.
  • the battery space 12 is accessible via an opening 13 and is filled by the battery pack 14 flush with the outer skin of the handset.
  • the battery pack 14 can be seen in FIG. 1a and has been omitted in FIG. 1b for the sake of clarity.
  • the outer wall element 16 is normally aligned with the outer wall of the battery pack 14 and together with this forms the rear wall of the rear housing shell 1.
  • a guide rail 17 parallel to this, through which the outer wall element 16 is guided and displaceable in the longitudinal direction of the handset .
  • the opening 15 can be closed with the outer wall element 16, as shown in FIG. 1a, while on the other hand the outer wall element 16 can be moved in the direction of the lower end of the handset, i.e. in the direction of the microphone, although the battery pack 14 must first be removed .
  • the rear housing shell 1 and the guide rail 17 can, for. B. be integrally connected.
  • the rear housing shell 1 holds a carrier 18 for a control card holder 19 which is accessible through the opening 15.
  • the carrier 18 can also be connected in one piece to the rear housing shell 1.
  • the control card holder 19 can be one for holding a so-called SIM card.
  • This control card holder 19 comes to rest in a rear recess 20 of the carrier 18.
  • the outer wall element 16, the guide rail 17 and the control card holder 19 are parallel to one another.
  • the outer wall element 16 is displaced in the direction towards the lower end of the handset until the upper end face of the outer wall element 16 is aligned with the lower edge 21 of the recess 20.
  • the control card holder 19 can be opened in order to insert or remove a control card.
  • the position of the outer wall element 16 is fixed by locking means, not shown. The outer wall element 16 can therefore not slide completely from the carrier 18 in this operating position.
  • the rear housing shell 1 and the front housing shell 2 when they lie on one another with their inwardly facing surfaces, can be displaced parallel to one another at least in regions, preferably in the longitudinal direction of the handset.
  • the front housing shell 2 is provided with lugs 22, several of which are arranged side by side in the longitudinal direction of the handset.
  • the lugs 22 are located on the opposite side surfaces of the front housing shell 2 and protrude inward from them. They can consist of plastic and can be connected in one piece to the front housing shell 2. Only one of these noses 22 can be seen in FIG. 1a.
  • hooks 23 provided on the rear housing shell 1 for the respective lugs 22, which hooks are also arranged on the opposite inner sides of the rear housing shell 1 and protrude inward therefrom.
  • These hooks 23, like the rear housing shell 1, can also be made of plastic and connected to it in one piece.
  • the hooks 23 each have a nose receiving area 24 which extends in the longitudinal direction of the handset and which finally merges into an opening 25 which opens in the direction of the front housing shell 2. If the housing shells 1 and 2 are placed on one another with their inner sides, the lugs 22 are first guided into the mouths 25 until the housing shells 1 and 2 come to lie on one another.
  • FIG. 1b shows a total of six nose / hook combinations 22, 23. Three of them are located at the same distance from each other on the respective inner sides of the housing shells 1 and 2.
  • the blocking device serves to prevent a relative displacement of the housing shells 1 and 2 in their longitudinal direction when the lugs 22 have been inserted into the nose receiving areas 24 of the hooks 23.
  • the blocking device consists of two locking arms 26 and 27, one of which is located on one of the sides of the rear housing shell 1. There, its end facing the antenna 11 is pivotally articulated on the inside of the rear housing shell 1. Bearings 28 and 29 serve this purpose. The end of each locking arm pointing away from the antenna 11 is connected in one piece to a pawl 30, 31. This pawl points in the direction of the front housing shell 2. If the latching arms 26, 27 are pivoted furthest away from the rear housing shell 1, the pawls 30, 31 engage behind an edge 32, 33 provided on the front housing shell 2, which is located on the inside the front housing shell 2 and z. B. can be formed by a web or a recess.
  • the locking position of the locking device is fixed so that the housing shells 1 and 2 can no longer be detached from one another. More precisely, the hooks 23 in FIGS. 1a and 1b prevent the lugs from shifting to the left, while the locking arms prevent the edges 32, 33 from shifting to the right. Separation of the housing shells 1 and 2 perpendicularly from one another is likewise prevented by the nose / hook combination 22, 23, that is to say by the locking action of the locking device.
  • Both latching arms 26, 27 are connected to one another via a bracket 34 which extends transversely to the handset and comes to lie below the area of the carrier 18 which is furthest away from the antenna 11.
  • the carrier 18 has a carrier opening 35, into which a rod-shaped tension element 36 extends, which is coupled to the bracket 34.
  • This tension element 36 is aligned with the upper surface of the carrier 18 and has a lateral incision 37.
  • a bevel 38 is provided on the corresponding edge of the carrier opening 35.
  • the blocking device is to release the locking device, that is to say the latching arms 26 and 27 are to be disengaged from the edges 32 and 33, this is done by pulling the pulling element 36 out of the carrier opening 35.
  • a screwdriver or a other sharp object can be gripped in the lateral incision 37. This is accessible due to the bevel 38 when the locking arms 26, 27 still engage behind the edges 32, 33.
  • the battery pack 14 must also be removed, as explained at the beginning. Only then can the blocking device be brought into an operating position in which it allows the locking device to be moved from the locking position into the unlocking position. If the locking device is in the locking position, the latching arms 26, 27 are brought into engagement with the edges 32, 33 in that the pulling element 36 is pressed downward via the outer wall element 16. Special biasing means for the locking arms 26, 27 are therefore not required.
  • FIGS. 2a to 2d again show in detail the processes involved in dismantling the handset or in separating the housing shells 1 and 2 from one another.
  • the outer wall element 16 and the guide rail 17 omitted and also the battery pack 14.
  • the same elements as in FIGS. 1a and 1b are provided with the same reference symbols and are not described again.
  • the locking device is in the locking position, so that the lugs 22 are fully inserted into the hooks 23.
  • the blocking device is in the blocking position, so that the pawl 30 engages behind the edge 32 or the shoulder.
  • the upper end of the tension element 36 is aligned with the upper surface of the carrier 18. This is only partially shown here for the sake of clarity.
  • several pairs of lugs 39 and openings 40 receiving them can be present here.
  • the lugs then point inwards and are located on the rear housing shell 1, while the openings 40 are present in an inner extension 41 of the housing shell 2. This can best be seen in FIG. 2d.
  • the latter can be provided with corresponding stoppers 42.
  • the lower side of the jack 30 beveled so that in the present case it can slide over the edge 32 forming the edge when the lugs 22 enter the nose receiving area 24.
  • Figures 3a to 3h show a second embodiment of the invention. They are shown in simplified form in that they only show the side wall areas of the rear and front housing shells. Reference is only made to the construction of one side wall of the handset, since the construction of the other side wall of the handset is symmetrical.
  • FIG. 3a shows the structure of the rear housing shell 1 in the area of its side wall.
  • a positioning hook 43 pointing in the direction of the front housing shell 2 is arranged on the rear end face.
  • a wall element 48 projects inward, from which the battery receiving area begins. This wall element 48 is at a distance from the side wall 49 of the rear housing shell 1, the locking rod 47 being guided between the wall element 48 and the side wall 49.
  • the wall element 48 includes a transversely extending rear wall 50 and a base element 51 provided with arches for receiving batteries.
  • the wall element 48 includes a side wall 52 which is spaced apart and parallel to the side wall 49.
  • the side wall 52 contains an opening 53, which is rectangular here.
  • FIG. 3b shows the locking bar 47, which is designed as a flat bar. It bears against the side wall 49 and is displaceable in its longitudinal direction.
  • the already mentioned guide elements 44, 45 and 46 serve to mount the locking bar 47 on the side wall 49, the guide elements 45 supporting the locking bar 47 from below, specifically in the area of recesses 54 and 55 on the lower longitudinal edge of the locking bar 47 upper longitudinal edge the locking rod 47 rests on the guide elements 46.
  • the front section of the locking rod 47, designated 47a comes to lie between the walls 49 and 52.
  • a rear section 47b of the locking rod 47 has two notches 56 and 57 which are spaced apart from one another on its upper longitudinal edge.
  • This rear section 47b is secured against slipping off the side wall 49 by the bow-shaped guide element 44, which surrounds the section 47b.
  • This bow-shaped guide element 44 also has a locking projection which points from top to bottom and which, depending on the displacement position of the locking rod 47, engages in one of the notches 56, 57 and thus blocks the locking rod 47.
  • the bow-shaped guide element 44, the section 47b and the notches 56, 57 form a blocking device.
  • Hooks 58 are attached to the lower longitudinal edge of the locking rod 47 and point in the direction of the front housing shell 2. These hooks consist of angular elements, the free leg of which runs parallel to the longitudinal direction of the locking rod 47. In the present case, the free leg points towards the battery housing.
  • a lateral extension which bears the reference number 59.
  • This lateral extension 59 extends through the opening 53 into the battery compartment and forms part of the bottom of the battery compartment there. If there is a battery in the battery compartment, it rests on both the base element 51 and the extension 59. Both elements have the same structure.
  • a third locking rod 60 which is connected to the free end of the extension 59 and runs parallel to the locking rod 47, serves to lock the housing shells 1 and 2 in the lower end region.
  • the approach 59 is connected to the corresponding approach of the opposite locking rod, so that the third locking rod 60 is in the middle.
  • FIG. 3 c shows the corresponding side wall of the front housing shell 2.
  • a recess 61 for receiving the positioning hook 43 is provided on its end side facing the antenna.
  • FIG. 3d shows a state of the rear housing shell 1 before the final assembly of the locking rod 47.
  • the rear section 47b has not yet moved into the bow-shaped guide element 44, which, for. B. can be integrally connected to the rear housing shell 1.
  • the clamping device 65 which can snap into one of the notches 56 and 57, and which can also be designed to be resilient.
  • the clamping device 65 can be fixedly mounted on the bracket 44. But it can also be attached directly to the side wall 49.
  • FIG. 3e shows the rear housing shell 1 with the locking rod 47 in its finished assembly position.
  • the clamping device 65 engages in the notch 57, so that a displacement of the locking rod 47 in the direction of the battery compartment is still possible.
  • An opposite displacement of the locking rod 47 can be prevented by a sloping section 47c on its lower longitudinal edge, which no longer allows the locking rod 47 to pass through the bow-shaped guide element 44 to the rear.
  • FIG. 3f shows the front housing shell 2 again.
  • the shifting of the two locking rods 47 is carried out by actuating a projection 66 projecting to the rear on the third locking rod 60.
  • the battery compartment cover (not shown) must first be removed in order to gain access to the interior of the battery compartment. After removing the batteries present in it and a possibly existing type plate, which could be attached to the base element 51 via a recess 67 in the base element 51 for the attachment 66, the attachment 66 can then be moved accordingly and with it the locking rods 47.
  • the effort required to move the locking rods 47 from the locking position to the unlocking position on the one hand and from the unlocking position to the locking position on the other hand can be selected differently. This can be achieved by choosing different depths of the notches 56, 57. In order to get out of the locking position as difficult as possible by moving the locking rods 47, the depth of the notch 57 can be chosen to be larger, so that the clamping devices 65 engage deeper in the respective locking rods 47 and therefore a greater displacement resistance has to be overcome during their longitudinal displacement.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Mobile Radio Communication Systems (AREA)
EP97106737A 1996-05-10 1997-04-23 Combiné téléphonique pour un système radiotéléphonique Withdrawn EP0806857A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19618981 1996-05-10
DE19618981A DE19618981C1 (de) 1996-05-10 1996-05-10 Handapparat für ein Funktelefonsystem

Publications (2)

Publication Number Publication Date
EP0806857A2 true EP0806857A2 (fr) 1997-11-12
EP0806857A3 EP0806857A3 (fr) 2004-02-04

Family

ID=7794010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97106737A Withdrawn EP0806857A3 (fr) 1996-05-10 1997-04-23 Combiné téléphonique pour un système radiotéléphonique

Country Status (3)

Country Link
US (1) US5960332A (fr)
EP (1) EP0806857A3 (fr)
DE (1) DE19618981C1 (fr)

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GB2362774A (en) * 2000-05-26 2001-11-28 Nokia Mobile Phones Ltd Housing release mechanism for a radiotelephone
GB2362774B (en) * 2000-05-26 2004-08-18 Nokia Mobile Phones Ltd Radiotelephone
US7548761B2 (en) 2000-05-26 2009-06-16 Nokia Mobile Phones Limited Radiotelephone

Also Published As

Publication number Publication date
DE19618981C1 (de) 1997-06-12
US5960332A (en) 1999-09-28
EP0806857A3 (fr) 2004-02-04

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